Instagram is the king of social engagement with its users interacting with more branded content than any other social media platform. It’s also the fastest-growing and has more than 200 million active monthly users.

A 2014 Forrester Research study shows that top brands’ Instagram posts generated a per-follower engagement rate of 4.2%. That means Instagram delivered these brands 58 times more engagement per follower than Facebook, and 120 times more engagement per follower than Twitter.